Mainframe Developer (COBOL)

Micro1; India; Remote; INR 55,000 - 110,000; Full time

Job summary

Cashback24x7 is seeking a remote COBOL Developer contractor to contribute to a high-impact AI training data project. You will apply deep COBOL expertise to analyze legacy codebases, extract business rules, and document COBOL logic for AI systems.

You will annotate COBOL scripts, help design test scenarios, and collaborate asynchronously with project coordinators and technical experts to ensure accuracy, completeness, and alignment with milestones in a remote setting.

Qualifications

• Proven COBOL development experience.
• Ability to document COBOL logic and business rules.
• Experience with mainframe environments.
• Ability to work independently in a remote setting.

Responsibilities

• Analyze COBOL codebases to inform AI training data.
• Document COBOL logic and business rules clearly.
• Evaluate sample code and identify edge cases.
• Annotate COBOL scripts to support ML dataset creation.
• Design test scenarios reflecting real-world COBOL apps.
• Collaborate with coordinators and technical experts remotely.
• Ensure accuracy and completeness of submitted materials.

Skills

COBOL Development

Mainframe Expertise

Documentation

Analytical Skills

Communication

Migration Experience

Remote Work

Job description

Job Description

Role Title: COBOL Developer

Role Type: Contractor

Location: Remote

micro1 is engaging COBOL Developers to contribute their expertise to a high-impact customer project. In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Scope of Work

• Analyze, interpret, and provide guidance on existing COBOL codebases for the creation of AI training data.
• Develop clear, accurate documentation of COBOL logic, workflows, and business rules to inform AI-driven systems.
• Evaluate sample code and project scenarios, offering expert feedback and identification of potential edge cases or ambiguities.
• Review and annotate COBOL scripts or pseudo-code, supporting the development of robust machine learning datasets.
• Contribute to designing test cases and scenario outlines that represent real-world COBOL applications.
• Collaborate with project coordinators and other technical experts through effective written and verbal communication.
• Ensure technical accuracy and completeness in all submitted materials to enhance AI learning outcomes.

Preferred Qualifications

• Proven experience and deep proficiency in COBOL development across diverse business domains.
• Strong analytical skills with the ability to decode complex legacy systems and articulate their function.
• Demonstrated capability to produce precise, user-friendly technical documentation.
• Exceptional written and verbal communication skills, with attention to clarity and detail.
• Previous experience with large-scale migration, integration, or modernization projects (a plus).
• Familiarity with mainframe environments and related tooling.
• Ability to work autonomously, manage deliverables, and meet project milestones in a remote setting.